By my count, this is the sixth clarified aged tequila. The others are:
Qui Tequila - "The world's first platinum extra añejo tequila...Qui undergoes a proprietary filtration and distillation" link
Casa Dragones - A blend of blanco with anejo tequila. "The brilliant platinum color of Casa Dragones, which heralds the delicate aroma, is achieved using an ultra-modern filtration system." link
Don Julio 70 Anejo Claro- Clarified anejo tequila link
Milagro Unico -"Milagro Unico combines our exclusive, micro-distilled silver tequila with our rarest and finest barrel-aged reserves to create a smooth, complex joven blend." link
Maestro Dobel Diamon Tequila- A blend of reposado, anejo, and extra-anejo. "Each bottle of Dobel Tequila is double-distilled, matured in Hungarian White Oak barrels, and filtered for exceptional smoothness and clarity." link
Lunazul Primero - "Filtered eight times to achieve a crystal clear color, Primero is a unique Añejo Tequila with flawless color and unusual maturity." link
- Herradura Ultra - Only available in Mexico so far, this is a 35% ABV clarified anejo tequila. Bottle spotted by Clayton of Experience Tequila.
Some tequilas are clarified through a different method: redistilling. Corzo is aged and redistilled, and so are some of the high-end Patron tequilas. I believe that this resets the aging, so that an aged tequila destilled becomes a blanco again.
About Clarifying Spirits
Clarifying aged spirits is very common in rum: most white rum is aged for a year or more and then filtered through charcoal to remove most of the color. But it's relatively new in tequila. I belive Maestro Dobel was the first to do it.
For more about filtration in spirits, check out this article I wrote about filtration in all spirit categories for DiffordsGuide.com.